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3 years ago

Explain what WHMIS is

Chemistry

1 answer:

White raven [17]3 years ago

7 0

Workplace Hazardous Materials Information System is the answer to this question. Hope it helps :)

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What is the term for the number of protons in the nucleus of each atom of an element?

xxTIMURxx [149]

Answer:

atomic number

Explanation:

atomic number is the number of protons

5 0

2 years ago

The amino acids are combinations of

aalyn [17]

Answer: The correct answer is: [B]:

_________________________________________________

" organic acid and amines " .

_________________________________________________

Note: Choice B: "organic acid and amines" ;

is the only answer choice that contains "amines" (hint:  amino acid / amine) ; which are "proteins" .

As such; Choice "B" is the only correct answer choice.

_____________________________________________________

Hope this helps!

Best wishes to you!

_____________________________________________________

5 0

3 years ago

Read 2 more answers

The equilibrium constant, Kc, for the following reaction is 0.967 at 650 K. 2NH3(g) N2(g) 3H2(g) When a sufficiently large sampl

AlekseyPX

Answer: Concentration of $NH_3$ in the equilibrium mixture is 0.31 M

Explanation:

Equilibrium concentration of $H_2$ = 0.729 M

The given balanced equilibrium reaction is,

$2NH_3(g)\rightleftharpoons N_2(g)+3H_2(g)$

Initial conc. x 0 0

At eqm. conc. (x-2y) M (y) M (3y) M

The expression for equilibrium constant for this reaction will be:

3y = 0.729 M

y = 0.243 M

$K_c=\frac{[y]\times [3y]^3}{[x-2y]^2}$

Now put all the given values in this expression, we get :

$K_c=\frac{0.243\times (0.729)^3}{(x-2\times 0.243)^2}$

$0.967=\frac{0.243\times (0.729)^3}{(x-2\times 0.243)^2}$

$x=0.80$

concentration of $NH_3$ in the equilibrium mixture = $0.80-2\times 0.243=0.31$

Thus concentration of $NH_3$ in the equilibrium mixture is 0.31 M

3 0

3 years ago

How many moles of co2 can be produced by the complete reaction of 1.53 g of lithium carbonatewith excess hydrochloric acid (bala

nlexa [21]

Moles of Li2CO3 = 1.53/73.891 = 0.0207 mole
Since HCl is in excess, amount of CO2 will depend on the limiting reagent which is Li2CO3.

∴Moles of CO2 = Moles of Li2CO3 = 0.0207.

7 0

4 years ago

Read 2 more answers

What parts of a wave are used to determine the wavelength of that wave

Ann [662]

The trough and the hill part

7 0

4 years ago